Surface acoustic wave propagation in graphene

Peter Thalmeier, Balázs Dóra, Klaus Ziegler

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Surface acoustic wave (SAW) propagation is a powerful method to investigate two-dimensional (2D) electron systems. We show how SAW observables are influenced by coupling to the 2D massless Dirac electrons of graphene and argue that Landau oscillations in SAW propagation can be observed as function of gate voltage for constant field. Contrary to other transport measurements, the zero-field SAW propagation gives the wave-vector dependence of graphene conductivity for small wave numbers. We predict a crossover from Schrödinger to Dirac-like behavior as a function of gate voltage, with no attenuation in the latter for clean samples.

Original languageEnglish
Article number041409
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number4
DOIs
Publication statusPublished - Jan 11 2010

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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